BUSINESS AND SEGMENT REPORTING (Reconciliation of Income from Vessel Operations to Loss Before Reorganization) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
BUSINESS AND SEGMENT REPORTING [Abstract]
Total adjusted income from vessel operations of all segments	$ 58,273	$ 27,377
General and administrative expenses	(7,434)	(6,773)
Provision for credit losses	(62)	(1,298)
Third-party debt modification fees	(232)	(30)
(Loss)/gain on disposal of vessels and other property, including impairments	2,804	48
Consolidated (loss)/income from vessel operations	53,349	19,324
Equity in income/(loss) of affiliated companies	5,111	8,070
Other (expense)/income	(13,432)	1,036
Interest expense	(12,009)	(17,533)
Income before income taxes	$ 33,019	$ 10,897